Principal Software Engineer - System / Clojure

We are seeking a highly skilled Principal Software Engineer with expertise in Clojure and system design to join our dynamic team. In this pivotal role, you will lead the development of innovative software solutions, drive architectural decisions, and mentor junior engineers. You will collaborate with cross-functional teams to ensure our technology stack meets the demands of our growing customer base.

As a Principal Software Engineer at ServiceNow, you will play a pivotal role in designing and developing innovative software solutions that meet the demands of our clients. You will collaborate with a talented team of engineers and product managers to deliver high-quality software while driving architectural and design decisions.

At d-Matrix, we are dedicated to unlocking the transformative potential of generative AI, leading the charge in both software and hardware innovation. Our team thrives on a culture of respect and collaboration, where diverse perspectives fuel creative solutions.We believe in humility and prioritize direct communication. We are looking for passionate individuals who are eager to tackle challenges and are driven by results. If you're ready to explore the boundless opportunities in AI, join us as we shape the future together.Location: Hybrid, with 3 days per week onsite at our Santa Clara, CA headquarters.Role Overview: As a Principal AI/ML System Software Engineer, you will play a critical role in productizing the software stack for our cutting-edge AI compute engine. You will lead the development, enhancement, and maintenance of our next-generation AI deployment software, collaborating closely with a team of system software experts and interfacing with hardware and other software teams.

Join ServiceNow as a Principal Software Engineer specializing in Artificial Intelligence and Machine Learning. In this pivotal role, you will leverage your deep expertise in software engineering and AI/ML technologies to drive innovative solutions and enhance our product offerings. You will collaborate with cross-functional teams to define technical requirements and ensure the successful implementation of advanced AI algorithms.

At Forward Networks, we are revolutionizing the management and security of the world’s most intricate networks. Established in 2013 by a team of four Stanford Ph.D.s, we pioneered the development of the industry’s first network digital twin—a mathematically precise representation of the production network that provides IT teams with unparalleled visibility, verification, and agility across multiple cloud and vendor environments.Our esteemed clientele includes industry giants like Goldman Sachs, PayPal, S&P Global, IBM, and Dell, alongside rapidly growing enterprises and government bodies. According to IDC, our clients experience an average of $14.2 million in annual savings through enhanced efficiency and security.Supported by elite investors such as Andreessen Horowitz, Goldman Sachs, MSD Partners, and Threshold Ventures, we cultivate a people-centric and innovative culture where brilliant minds are at the forefront of advancing network reliability, security, and AI-driven operations.We are on the lookout for a seasoned Principal Backend Software Engineer to become a vital member of our Scaling team. In this crucial position, you will spearhead the development of our product’s fundamental components, ensuring seamless interaction with other services and systems. Your expertise will be key in optimizing our core data structures and enhancing our computational capabilities.

Join nEye.ai, a pioneering startup in optical switching technology, set to transform data centers. Our innovative MEMS-based silicon photonics optical circuit switches (OCS) address critical bottlenecks in AI processing by facilitating direct optical links among thousands of GPUs and memory units. Our flagship product, the SuperSwitch, is designed for ultra-low power consumption and high radix performance, offering hyperscale data centers exceptional efficiency and scalability. Position Overview We are seeking a dedicated Station Software Engineer to develop and maintain the software stack for our product validation and qualification stations. This role will involve collaboration across various teams, playing a key part in advancing our testing capabilities from initial bench-level exploration to high-throughput reliability and performance validation. Reporting to the Head of Product Validation Engineering, you will take ownership of the station-level control layer, instrument drivers, data pipelines, and test execution frameworks. Your contributions will enable our engineering teams to effectively characterize, debug, and qualify our cutting-edge silicon photonic platforms with reliability and efficiency.

CyberArk is seeking a Staff Software Engineer to help design and build core components of its cloud and distributed systems platform. This position centers on developing secure, scalable solutions that protect sensitive data and support efficient operations. Role overview This engineer will take on architecture and development responsibilities for the platform, working with multiple teams to deliver reliable software. The role involves solving complex technical problems and contributing to the ongoing evolution of CyberArk’s cloud offerings. Collaboration Expect to partner with cross-functional groups, sharing insights and aligning on technical direction. Teamwork and open communication are important for success in this environment. What you bring Experience building and maintaining cloud or distributed systems Strong problem-solving abilities Comfort working collaboratively on challenging projects This position is based in Santa Clara.

Join us in a thrilling phase of technological advancement as we revolutionize the data storage landscape. Here at Pure Storage, you will lead with innovative ideas, evolve alongside us, and collaborate with the brightest minds in the industry.This is the type of work that defines the tech sector—work that has the potential to change the world. If you’re eager to embrace limitless possibilities and make your mark, we invite you to be part of our journey.THE ROLEBecome an integral member of our elite engineering team, dedicated to crafting the next generation of enterprise storage solutions. As a vital contributor, you will spearhead innovation efforts by developing and refining the Linux kernel to enhance performance and reliability. Your expertise will play a pivotal role in shaping our future products, as you collaborate with a talented team to tackle complex challenges and achieve groundbreaking results.WHAT YOU'LL DODesign and implement new features in the Linux kernel to support Pure’s enterprise storage offerings.Maintain and patch existing code to address challenging issues, including those reported by customers.Optimize kernel performance within Pure’s systems to satisfy customer needs.Collaborate with cross-functional teams, partners, and vendors to troubleshoot and resolve hardware-software integration issues.Lead software architecture and development from concept through to release, ensuring high-quality, resilient, and high-performance outcomes.Mentor peers and share knowledge to foster a collaborative environment.Engage in code reviews and work with cross-functional teams to define requirements for upcoming projects.

d-matrix seeks a Principal System Power Engineer based in Santa Clara. This position centers on creating and refining power systems that enable advanced technology products. Key responsibilities Design and enhance power systems for both new developments and established products Collaborate with engineering teams to deliver solutions that prioritize reliability and efficiency Apply specialized knowledge to projects that move the company’s technology forward Teamwork Work alongside engineers from various fields to address technical challenges and help deliver high-performance systems.

Join Arista Networks as a Senior/Lead Software Engineer specializing in Network Systems. In this pivotal role, you will spearhead the design and development of innovative networking solutions, driving the evolution of our cutting-edge technology. Collaborate with a talented team of engineers to create robust software that enhances the performance and reliability of our products.

At d-Matrix, our mission is to unlock the transformative power of generative AI, driving the evolution of technology. We stand at the cutting edge of both software and hardware innovations, continually expanding the horizons of what is achievable. Our workplace culture is characterized by respect and collaboration.We place a high value on humility and encourage open communication. Our team is diverse, with a variety of perspectives that lead to superior solutions. We are on the lookout for individuals who are excited about overcoming challenges and are committed to delivering results. Are you ready to explore your potential? Together, we can shape the limitless possibilities of AI.Job Location:This is a hybrid role that requires you to work on-site at our Santa Clara, CA headquarters 3-5 days a week.About the Role:As a Principal Hardware Design Engineer at d-Matrix, you will play a pivotal role in our hardware organization, spearheading the development of cutting-edge platforms for our silicon-integrated AI accelerators. Your work will not merely involve designing boards; you will be laying down the physical framework that enables our Chiplet-based NPU (Neural Processing Unit) to tackle the most significant challenges in LLM inference within the industry.Key Responsibilities:Architectural Leadership: Oversee the complete hardware development lifecycle for sophisticated, high-performance AI accelerator PCIe cards and chassis platforms.Detailed Electrical Design: Manage schematic capture, component selection, and comprehensive BOM oversight for multi-rail, high-power designs.High-Speed Design: Design and supervise the layout of ultra-high-speed interfaces, such as PCIe Gen5/6, CXL, and custom chiplet-to-chiplet interconnects.Power Delivery (PDN): Develop resilient power delivery networks capable of managing high-current transients and low-voltage rails typical of advanced AI silicon.Cross-Functional Collaboration: Work closely with Silicon, Signal Integrity (SI/PI), Thermal, and Mechanical teams to ensure seamless product integration and performance.DFx & Manufacturing: Champion Design for Excellence (DFM, DFT, DFA) to guarantee high-yield production and long-term reliability in data center settings.Mentorship: Serve as a technical mentor, guiding junior engineers and establishing the standard for best practices in hardware design throughout the organization.

Join us at the forefront of technological innovation as we revolutionize the data storage landscape. At Pure Storage, we encourage pioneering ideas, foster growth, and collaborate with some of the brightest minds in the industry.If you are eager to harness your skills to create impactful solutions and thrive in a dynamic environment, we invite you to be part of our journey.THE ROLEAs a key member of our Systems Software team, you will architect and deliver the foundational software that drives the most advanced, high-performance, and reliable storage platforms in the industry. You will oversee the complete development lifecycle for critical system components, from conception through to customer deployment. This is an exceptional opportunity to leverage your deep systems expertise to tackle intricate hardware-software integration challenges, ensuring uninterrupted service and ongoing innovation for our clients. You will work closely with hardware engineers and cross-functional software teams to shape the future of enterprise data storage.WHAT YOU'LL DOLead the comprehensive design, development, and debugging of high-performance, mission-critical system software in C/C++ for our next-generation storage platforms.Own the development and integration of vital control plane features—such as configuration, event handling, and robust failover—ensuring the platform's high availability and ease of management.Collaborate with engineering teams and external partners to define hardware-software interfaces and implement essential components for system bring-up, driver development, and L2/L3 networking functionalities.Design and implement software solutions for complex tasks, including firmware management and updates, making certain that availability impacts are minimal for our global customer base.Mentor team members, guiding them through complex projects, setting high standards for code quality and maintainability, and offering technical support on cross-functional initiatives.This position requires a presence in our Santa Clara, CA office, in accordance with Pure’s policies, unless on approved leave or business travel.

Join Integrated Resources Inc. as a Principal Engineer and be an integral part of our innovative team. In this role, you will lead engineering projects, mentor junior engineers, and drive technical excellence within our organization. Your expertise will be crucial in developing cutting-edge solutions that meet the needs of our clients.

About Us: Fortanix is pioneering the realm of data-centric cybersecurity within hybrid multicloud environments. As data proliferates across various clouds and devices, traditional security measures fall short. We empower businesses with innovative solutions to combat persistent cyber threats, ensuring agile and robust data security through cutting-edge cryptography and encryption techniques.With data breaches on the rise, our focus is on data exposure management, safeguarding your information with a unified security platform that identifies, assesses, and mitigates risks. Whether implementing a Zero Trust approach or adapting to the post-quantum computing landscape, we assist enterprises globally in protecting their most sensitive data, anytime and anywhere.Our relentless pursuit of solving the world’s most complex data security challenges has garnered numerous accolades, including Cybersecurity Excellence and Innovation Awards, and recognition from industry leaders such as NVIDIA, Microsoft, Intel, ServiceNow, and Snowflake.At Fortanix, we pride ourselves on fostering a culture of trust, innovation, and collaboration, where every team member's voice is heard. Recognized as a Great Place to Work, we invite passionate individuals to join us in shaping the future of data security and creating a safer digital landscape.

Join us at the forefront of technology, where we are revolutionizing the data storage landscape. Here, you'll harness innovative thinking, grow alongside industry leaders, and collaborate with the brightest minds in the field.This is the type of work that transforms the world—exactly what the tech industry was built upon. If you're ready to explore limitless opportunities and make your mark, we invite you to be a part of our team.THE ROLEWe are on the lookout for a seasoned Senior Platform Embedded Software Engineer to join our Systems Software Team. In this role, you will be a key member of a dynamic group responsible for designing, developing, and testing the system software functionalities for Pure's forthcoming platforms. Your work will cover a diverse range of Systems software, allowing you to engage with various features, from Platform drivers to networking and storage layers.WHAT YOU'LL DOPlan and influence the entire lifecycle of new Hardware Platforms, tackling challenges from design to deployment, upgrades, and fleet-level reliability.Engage in the complete lifecycle of new hardware platforms from initial bring up to manufacturing release. Collaborate closely with peer teams to troubleshoot complex HW/FW issues of new server hardware, including CPUs, chipsets, and peripheral components. Utilize lab tools (oscilloscope, logic analyzer, JTAG) and kernel/driver traces to debug complex HW/FW issues across x86, PCIe, NVMe, and networking.Design, implement, and enhance remote server management capabilities (e.g., using standards like Redfish) along with improving Reliability, Availability, and Serviceability (RAS) features.Develop and implement low-level security features, including Secure Boot, hardware Root of Trust (RoT), and TPM 2.0.Create, write, and maintain software components using C/C++, Python, Golang, and RUST.Collaborate with vendors to specify requirements and ensure successful system delivery.Work closely with hardware engineers, system architects, and OS developers to define specifications, review designs, and guarantee seamless hardware-software integration.This position primarily requires being in-office, so you will need to work from our Santa Clara, CA office in line with Pure’s policies unless you are on PTO, travel, or other approved leave.

nEye.ai builds MEMS-based silicon photonics optical circuit switches for data centers, enabling direct optical links among thousands of GPUs and memory units. These switches are designed for ultra-low power consumption, high radix, and compact chip-scale integration, supporting hyperscale data centers focused on performance and efficiency. Role overview The Associate Test Engineer, Photonics Systems, will work onsite in Santa Clara, CA. This lab-focused position centers on hands-on testing and validation of advanced silicon photonics systems. The role involves executing test plans, collecting and analyzing data, and collaborating with both internal engineers and external foundries to identify issues and support device improvements. Daily work connects nanofabrication, photonics testing, and failure analysis, bridging design, fabrication, and validation activities. What you will do Execute test plans and analyze results to inform device improvements. Collaborate with engineers and external partners to troubleshoot and resolve technical challenges. Assist in developing and refining testing methods for photonics systems. Requirements Bachelor's degree in Electrical Engineering, Physics, or a related discipline. Strong analytical and problem-solving skills. Preferred skills Experience with wafer-level testing or probe stations. Familiarity with nanofabrication or cleanroom environments.

Join Pure Storage, a leader in transforming the data storage landscape with cutting-edge technology. At Pure Storage, you will engage in groundbreaking work that is redefining the future of data management. By joining our team, you will not only be at the forefront of innovation but also collaborate with some of the brightest minds in the industry.If you are passionate about making a significant impact and are ready to embrace the myriad of opportunities available in the tech world, we invite you to be a part of our journey.THE ROLEAs a key member of the Systems Software team, you will be responsible for architecting and delivering the core software that drives our state-of-the-art, high-availability storage platforms. You will spearhead the development of essential system components, addressing intricate hardware-software integration challenges to provide our customers with seamless, zero-downtime experiences. Collaborating closely with hardware teams and cross-functional software teams, you will help shape the future of enterprise data storage while ensuring our platforms lead in performance and reliability.WHAT YOU'LL DOArchitect High-Performance Networking: Oversee the comprehensive design and troubleshooting of C/C++ networking software to guarantee next-generation switching and fabric platforms meet stringent scalability and resiliency standards.Own Core Protocol Development: Implement vital Layer 2 and Layer 3 features—including forwarding behavior and control-plane protocols—that streamline operations for enterprise clients worldwide.Lead Hardware-Software Integration: Collaborate with ASIC vendors and internal platform teams to execute switch SDK functionalities, ensuring robust hardware interfaces and successful in-service software upgrades (ISSU).Innovate with Open Networking: Design and tailor SONiC-based solutions across control and data planes to augment our disaggregated network operating system capabilities.Drive Technical Excellence: Serve as a technical mentor and lead for intricate initiatives, establishing benchmarks for code quality and architectural decisions.

Join Our TeamAt Arista Networks, we are on the lookout for exceptional Software Test Engineers, also known as System Test Engineers, to contribute to the development of top-tier networking products for our AGNI team.The Arista Guardian for Network Identity (AGNI) is our cutting-edge solution for network identity and access management. It ensures secure authentication, authorization, and visibility for users, devices, and applications accessing the network. Built on a cloud-native, microservices architecture, AGNI utilizes ML/AI technologies to streamline operations, support zero-trust security, and scale with modern enterprise networks. It seamlessly integrates with existing identity sources and network infrastructure, available as both a SaaS and on-premises solution.If you are passionate about networking, energized by navigating complex network topologies, and thrive on the challenge of uncovering elusive bugs, this role is perfect for you. You will engage with our products just as our end customers do, ensuring their functionality and reliability.Your mission will be to identify the challenging bugs that evade the developers’ automated unit and product-level tests. Instead of spending hours on manual regression testing of extensive test plans, you will work in a dynamic environment where Arista's developers automate fundamental functional and integration tests.Thanks to our collaborative culture, you will work closely with various engineering teams, developers, POC engineers, and account teams to explore, identify, and resolve software issues before they reach our customers. We take quality seriously, and we want you to be our champion for software excellence!Your ResponsibilitiesCollaborate with developers to create automated testing plans that enhance your exploratory testing efforts.Contribute to functional specification and software design reviews, providing insights focused on customer needs.Operate in a highly productive environment alongside top engineers on the Linux platform, significantly reducing typical development cycles with an unwavering commitment to quality.Utilize all available resources to identify bugs in the software and hardware developed by your team.Draft test plans to validate the features and products of Arista.Design test network topologies to assess functionality, performance, stability, and scalability.

Join PlusAI, a trailblazer in Physical AI, as we develop cutting-edge AI-driven virtual driver software for autonomous trucks. With our headquarters positioned in the heart of Silicon Valley and operations extending across the United States and Europe, PlusAI has been recognized by Fast Company as one of the World’s Most Innovative Companies. We collaborate with industry leaders such as TRATON GROUP’s Scania, MAN, International brands, Hyundai Motor Company, Iveco Group, Bosch, and DSV to accelerate the rollout of next-generation autonomous trucking solutions. If you're passionate about making a significant impact and steering the future of autonomy, we invite you to become part of our dynamic team.As a Principal Engineer on our Mapping and Localization team, you will be responsible for the design and implementation of sophisticated fusion algorithms that integrate data from LiDAR, Radar, Cameras, IMUs, and GNSS with HD Maps to achieve unparalleled centimeter-level accuracy. Your expertise will be crucial in addressing the most challenging scenarios—from navigating GPS-denied tunnels to maneuvering through dynamic construction zones—ensuring our vehicles can operate safely and effectively within complex Level 4 Operational Design Domains (ODDs).

Join plus-2 as a Principal Engineer / Director of Motion Planning, where you will lead the development of cutting-edge motion planning technologies that drive our innovative projects. You will work closely with a talented team of engineers and researchers to create advanced algorithms and systems that enhance autonomy in robotics and automation.This role offers an exciting opportunity to shape the future of motion planning and contribute to high-impact projects. You will leverage your expertise to mentor junior engineers, collaborate with cross-functional teams, and drive research initiatives that align with our strategic goals.